Merge bitcoin/bitcoin#23373: test: Parse command line arguments from unit and fuzz tests, make addrman consistency check ratio easier to change

7f122a4188 fuzz: non-addrman fuzz tests: override-able check ratio (Vasil Dimov)
3bd83e273d fuzz: addrman fuzz tests: override-able check ratio (Vasil Dimov)
46b0fe7829 test: non-addrman unit tests: override-able check ratio (Vasil Dimov)
81e4d54d3a test: addrman unit tests: override-able check ratio (Vasil Dimov)
6dff6214be bench: put addrman check ratio in a variable (Vasil Dimov)
6f7c7567c5 fuzz: parse the command line arguments in fuzz tests (Vasil Dimov)
92a0f7e58d test: parse the command line arguments in unit tests (Vasil Dimov)

Pull request description:

  Previously command line arguments passed to unit and fuzz tests would be ignored by the tests themselves. They would be used by the boost test framework (e.g. `--run_test="addrman_tests/*"`) or by the fuzzer (e.g. `-runs=1`). However both provide ways to pass down the extra arguments to the test itself. Use that, parse the arguments and make them available to the tests via `gArgs`.

  This makes the tests more flexible as they can be run with any bitcoind config option specified on the command line.

  When creating `AddrMan` objects in tests, use `-checkaddrman=` (if provided) instead of hardcoding the check ratio in many different places. See https://github.com/bitcoin/bitcoin/pull/20233#issuecomment-889813074 for further motivation for this.

ACKs for top commit:
  mzumsande:
    re-ACK 7f122a4188
  josibake:
    reACK https://github.com/bitcoin/bitcoin/pull/23373/commits/7f122a4188af7130be9251611e41136a17c814f1

Tree-SHA512: 3a05e61e4d70a0569bb67594bcce3aad8fdef63cdcc54e2823a3bc9f18679571985004412b6c332a210f67849bab32d8467b4115fbff8f5fac9834982e60dcf3

src/qt/test/test_main.cpp

@@ -22,6 +22,7 @@
 #include <QApplication>
 #include <QObject>
 #include <QTest>
+#include <functional>
 
 #if defined(QT_STATICPLUGIN)
 #include <QtPlugin>
@@ -43,6 +44,8 @@ using node::NodeContext;
 
 const std::function<void(const std::string&)> G_TEST_LOG_FUN{};
 
+const std::function<std::vector<const char*>()> G_TEST_COMMAND_LINE_ARGUMENTS{};
+
 // This is all you need to run all the tests
 int main(int argc, char* argv[])
 {